100000100999 has 4 divisors (see below), whose sum is σ = 100044766080. Its totient is φ = 99955435920.

The previous prime is 100000100983. The next prime is 100000101013. The reversal of 100000100999 is 999001000001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 100000100999 - 2⁴ = 100000100983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100000100929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22329182 + ... + 22333659.

It is an arithmetic number, because the mean of its divisors is an integer number (25011191520).

Almost surely, 2^100000100999 is an apocalyptic number.

100000100999 is a deficient number, since it is larger than the sum of its proper divisors (44665081).

100000100999 is an equidigital number, since it uses as much as digits as its factorization.

100000100999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44665080.

The product of its (nonzero) digits is 729, while the sum is 29.

The spelling of 100000100999 in words is "one hundred billion, one hundred thousand, nine hundred ninety-nine".